Refrigeration device



April 1934- L. F. FEDDERS l 953,473

REFRIGERATION DEVICE Filed July 17 1935 2 Sheets-Shed 1 m 1 1 IZcmiZ'FeaHw-a Gttomeg April 3, 1934. I .F. FEDDE R S REFRIGERATIONDEVICE Filed July r7..- less 2 Sheets-Sheet 2 uh Hhm n m.

lllll n Patented Apr. 3, 1934 UNITED STATES REFRIGERATION msvron LouisF. Fedders, Buffalo, N. Y., assignor to Fedders Manufacturing Company,Inc., Buffalo,

Application July 17, 1933, Serial No. 680,713 Claims. (Cl. 248-16) Thisinvention relates to improvements in domestic refrigerating mechanism.

In the usual refrigeration system wherein a motor operated compressor isdepended upon as 5 a source of power, considerable difiiculty has beenexperienced in preventing the transmittal of vibrations therefrom to thewalls of the enclosing cabinet structure. Numerous devices have beenutilized to overcome this objection, but since the motor-compressor unithas usually depended on the cabinet forsupport, it-has been diflicult toprevent panel vibration in the cabinet. present invention it is proposedto mount the cabinet and the motor-compressor unit on a commonsupporting structure, which is mounted directly on the floor andtherefore is capable of absorbing shocks and vibrations. Further, it isproposed to mount the motor-compressor unit on resilient supportsthereon and in such manner as to discourage the transmittal of vibrationto the floor or to the cabinet structure through the common supportingstructure.

Other features of the invention are more specifically set forth in theaccompanying specification and drawings, wherein:

Fig. 1 is a vertical section through a cabinet showing themotor-compressor unit and the mounting device therefor in elevation.-Portions of the lower frame of the mounting device are broken away todisclose the resilient connection to the common support.

Fig. 2 is a side elevation of the mounting, the cabinet and connectionsthereto being omitted.

Fig. 3 is a top view of the supporting structure.

In accordance with the present invention, a cabinet 10 is provided tohouse a refrigerant compressor 11 and its motor 12. The compressor 11receives refrigerant through an input fitting l3, compresses therefrigerant, and delivers it to a condenser 14, whence it is deliveredto a receiver 15 which supplies the evaporator (notshown), throughsuitable control apparatus. As well understood in the art, thecompressor is operated intermittently in accordance with the temperatureof the space which is cooled by the evaporator, and accordingly'loadsand reactions of varying magnitude are imposed on the motor andcompressor, resulting in the setting up of vibrations of varyingfrequencies in the supporting structure for the motor-compressor unit.

- The mounting device 17 generally comprises a rectilinear structurefabricated of a pair of opposed angle iron frames 18 and 19, connectedat.

their bottoms by a square frame 20 and at their In the tops by plates 22and 23. The compressor 11 is secured to the top face of the plate 22 byscrews 24, while the motor 12 is adjustably supported within themounting device 17 by means of bolts 26 secured to the plate 22. Nuts 27position the 0 motor on the bolts 26, and they may be adjusted to movethe motor toward or away from the compressor so that the drive belt 28may be properly tensioned. The condenser 14 and the receiver are alsomounted on the device 17, the former being secured to the plate 23 bybolts 29 and positioned to receive the air stream from the fan 31 of themotor, and the latter being secured to an angle 32, which is in turnwelded to the frame 19.

The lower end of the mounting device is sup ported by resilientconnections on a supporting structure 33, which comprises a frame formedof connected cross members 34 and 35 and reinforcing side members 36.The resilient connecting devices 37 are preferably rubber biscuitshaving spaced coaxial bolts 38 cast therein, the lower bolts 38extending through and being secured to the cross members 35 and sidemembers 36 at their points of intersection by nuts 40. The upper bolts38 extend through corner pieces or lugs 41 welded to the corners of thelower frame 20,

and they are secured thereto by nuts 42.

The supporting structure (Fig. 3) is directly mounted on and includesthe feet 44 of the cabinet, which are suitable sheet metal members 7formed with angular corners 45, flanged bases 46 carrying anti-frictionbuttons 47 for contact with the floor. Gussets 48 are secured to theopposite legs of the bases 46, and the adjacent ends of the crossmembers 34 and 35 are formed with bent extremities 49 and 50 which arewelded thereto. Thus the entire weight of the mounting device and themembers of the refrigeration device mounted thereon are directlysupported on the feet 44.

The cabinet 10 is also directly supported on the feet 44 and it issecured thereto by screws, which may be removed to permit the cabinet tobe lifted from the supporting structure to'permit access to themotor-compressor unit for repair, or to permit the substitution of a newunit. It will be understood that the cabinet l0-may form part of theusual domestic refrigerator or beverage cooler, or it may, if desired,form a simple housing for the motor-compressor unit, as shown.

In operation it has been found that vibrations occurring in the mountingdevice are absorbed or 110 dampened to a considerable extent by therubber biscuits 37..

Due to the resiliencyof the biscuits 37, however, the mounting device ispermitted a certain controlled movement, generally resulting in thetransmittal of compression or tension loads through the biscuits andtheir supporting structure 34 to the feed 44 of the cabinet, which,being supported on the floor, receive such loads without transmittingany reaction to the cabinet structure.

It is intended that the described embodiment of the invention may bevaried in numerous manners without departing from the principles setforth, in accordance with the following claims.

I claim:

1. In a refrigerator including a motor-compressor unit and a cabinet forhousing the same,

a mounting device to which said unit is secured, a supporting deviceadapted to rest on the floor,

- means for removably securing the cabinet to the supporting device, and-resilient means connecting the mounting device to the supportingdevice.

2. In a refrigerator including a motor-compressor unit and a cabinet forhousing the same, a mounting device comprising a rectilinear structure,means for mounting the motor within the structure, means for mountingthe compressor on the top of said structure, a supporting device adaptedto rest on the floor, means for securing the cabinet to the supportingdevice, and resilient means connecting the lower extremities of therectilinear structure to the supporting device.

3. In a refrigerator including a motor-coming the lower corners of therectilinear structure to the supporting device.

4. In a refrigerator including a motor-compressor unit and a cabinet forhousing the same, a mounting device comprising a rectilinear structure,means for mounting the unit .on said structure, a supporting devicecomprising spaced foot members and a frame connecting the same, saidfoot members adapted to rest on the floor, means for securing thecabinet to the supporting, device, and resilient means connecting thelower corners of the rectilinear structure to the frame of thesupporting device.

5. In a' refrigerator including a motor-compressor unit and a cabinetfor housing the same, amounting device comprising a rectilinearstructure', means for mounting the motor within the structure, means formounting the compressor onthe top of said structure, lugs formed on thelower corners of the rectilinear structure, a supporting devicecomprising spaced foot members and a frame connecting the same, saidfoot members adapted to rest on the floor, means for removably securingthe cabinet to the supporting device, and resilient means connecting thelugs of the rectilinear structure to the supporting device.

LOUIS F. FEDDERS.

